here's pic of coco... he's a little over 6 lbs. and he's 19 months now.
i think coco was around 4 lbs at 16 weeks.. i remember his weight correlated with his "age." when we was 2 months he was 2 lbs, 3 monthe 3 lbs, 4 months 4 lbs.
but when he got neutered a little after he turned 1, he was 5 lbs. after the neuter he gained a little over a lb.
i like his size. he eats well, plays well, poops well, sleeps well.
that's all that matters, right?